Abstract: A machining method of a press die having a pierce cutter and a secondary relief-clearance area recessed inward relative to a profile of the pierce cutter. A plunge cutting tool has an edge portion protruding from an outer circumference of a tool body and can carve while rotating and moving in an axial direction of the tool body. While rotating the plunge cutting tool with an axis of the tool body being approximately parallel to a surface of the pierce cutter, the plunge cutting tool is relatively moved along the profile of the pierce cutter. The plunge cutting tool is also relatively moved in the axial direction of the tool body along the shape of the pierce cutter and the secondary relief-clearance area in a piercing direction each time the plunge cutting tool is relatively moved by a predetermined pitch.

Abstract: In the case of a method for chip-removing machining of workpieces (14), in particular for making bores in workpieces (14), wherein a tool (18) is put into rotation (20) relative to the workpiece (14) and the tool (18) is moved relative to the workpiece (14) with a feed motion, the tool (18) executes an oscillating motion in the direction (z) of the feed motion relative to the workpiece (14), a settable oscillation component being imparted to the feed motion through control means.

Abstract: A ring of a synchronizing device of a vehicle transmission includes a friction surface that interacts with a friction surface of another ring of the synchronizing device and at least one slide surface configured to slidably seat on an abutment surface of the synchronizing device. At least one curved groove is cut into the at least one slide surface by a whirling milling operation.

Abstract: In a pilot hole of a workpiece made of a difficult-to-cut cast iron, a cutting tool having a leading end to which a cutting insert is attached is inserted to cut the surface of the wall of the pilot hole. At this time, the cutting tool rotates about an axis (?) and also revolves about another axis (?), so that contouring is performed on the workpiece by the tool. The cutting insert is formed of a sintered body having a CBN content of not less than 85% by volume, and the cutting insert has a thermal conductivity of not less than 100 W/(mK).

Abstract: A cutting tool including a cutting blade, a shank section, and a supporting member for supporting and fixing the cutting blade, the cutting blade being fixed on one end of the supporting member, and the other end of the supporting member being fixed to the shank section, wherein a void formed among the shank section, the cutting blade, and the supporting member is filled with a filling agent.

Abstract: Sample extraction or trimming from an end strip of an elongated formed metal that is coiled in layers within a tensioned metal coil resting on driven rollers. A cut channel is formed across the material width. In some embodiments the cut channel is formed between the rollers and by cutting at an angle relative to the coil outer surface. Coil weight and/or a coil tensioner mechanism inhibits coil relaxation along the cut channel by maintaining tension on wrapped layers against each other when the coil is unbanded for sample extraction. The coil is rotated so that the cut channel clears the rollers laterally. Material downstream the cut is then separated from the coil. After trimming and/or sample extraction the coil maintains rolled tautness for ease of rebanding.

Abstract: A cutting insert according to an embodiment of the present invention includes an upper surface; a lower surface; a side surface; and a cutting edge which is located in an intersection region of the upper surface and the side surface, and includes a major cutting edge, a flat cutting edge, and a minor cutting edge located between the major cutting edge and the flat cutting edge. The cutting edge reaches a top portion thereof while being inclined upward from the flat cutting edge to the major cutting edge with respect to a reference plane perpendicular to a central axis of the cutting insert in a side view. The cutting edge is thereafter inclined downward with respect to the reference plane. A peripheral cutting edge angle of the minor cutting edge is larger than a peripheral cutting edge angle of the major cutting edge. A cutting tool including the cutting insert; and a method of manufacturing a machined product using the cutting tool are provided.

Abstract: A programming apparatus has a machining area recognizing section for recognizing a plurality of machining areas based on three-dimensional model data, a workpiece dividing section for setting a plurality of structures obtained by dividing a workpiece, a connection relationship recognizing section for recognizing a connection relationship between the machining areas, a machining area list generating section for recognizing, for each of the machining areas, either a machining type related to turning or a machining type related to milling corresponding thereto, and generating a machining area list in which the structures, machining areas, machining types and connection relationship are correlated with one another, a machining process setting section for setting, for each of the machining areas, a machining process corresponding to the machining type related to turning or milling thereof, and an NC program generating section for generating an NC program.

Abstract: A cutting insert of the present invention includes an upper surface; a lower surface; a side surface which is connected to the upper surface and the lower surface and has a first side surface and a second side surface in order; and a cutting edge includes a first flat cutting edge and a first major cutting edge in order in an intersection region of the first side surface and the upper surface, and has a second flat cutting edge and a second major cutting edge in order in an intersection region of the second side surface and the upper surface. The first side surface includes a first chamfered side surface with a curved shape, a first corner side surface with a planar shape, and a first major side surface in order. The second side surface includes a second chamfered side surface with a curved shape, a second corner side surface with a planar shape, and a second major side surface in order.

Abstract: An end face of a sheet member is cut while rotating a cutting member having a rotation axis extending along a vertical direction of the end face of the sheet member and a cutting blade projecting to a side of the end face of the sheet member around the rotation axis. The cutting member is moved relatively to the sheet member along a longitudinal direction of the end face to be cut. The part separated from a virtual line parallel to the sheet face and passing the rotation center in a cutting region formed by the rotating cutting blade is made to contact the end face of the sheet member.

Abstract: A cutting tool of the present invention includes a cutting insert and a holder having at a front end part thereof an insert pocket for attaching the cutting insert. The insert pocket includes a seating part including a seating face which is brought into contact with the lower surface of the cutting insert, and is inclined forward in a rotation direction of the holder as the seating face separates from the front end part of the holder; and a constraining part brought into contact with first and second side surfaces adjacent to each other among the side surface of the cutting insert.

Abstract: A relatively inexpensive and accurate method for micro scale tool touch-off and remaining tool life estimation using advanced methods of tool-workpiece conductivity monitoring. Part registration is based on a conductive circuit detection technique that utilizes an analog DC voltage. A tool life estimation system is provided, and accomplished through the combined application of hardware signal filtering and advanced signal processing techniques implemented on a digital signal processing unit.

Abstract: A cutting tool insert for machining by chip removal includes a body of polycrystalline cubic boron nitride compact (PCBN), either as a solid insert or attached to a backing body, onto which a hard and wear resistant PVD coating is deposited. The coating includes a polycrystalline nanolaminated structure of alternating A and B layers, where layer A is (Ti,Al,Me1)N and Me1 is one or more of the metal elements from group 3, 4, 5 or 6 in the periodic table, layer B is (Ti,Si,Me2)N and Me2 is one or more of the metal elements from group 3, 4, 5 or 6 in the periodic table including Al with a thickness between 0.5 and 10 ?m. The insert is particularly useful in metal cutting applications generating high temperatures, e.g., high speed machining of steels, cast irons, super alloys and hardened steels.

Abstract: The present invention relates to a cutting tool insert comprising a body of cemented carbide, cermet, ceramics, high speed steel (HSS), polycrystalline diamond (PCD) or polycrystalline cubic boron nitride (PCBN), a hard and wear resistant coating is applied, grown by physical vapour deposition (PVD) such as cathodic arc evaporation or magnetron sputtering. Said coating comprises at least one layer of (ZrxAl1-x)N with of 0.45<x<0.85 and 0.90?y<1.30 with a thickness between 0.5 and 10 ?m. Said layer has a nanocrystalline microstructure consisting of a single cubic phase or a mixture of hexagonal and cubic phases. The insert is particularly useful in metal cutting applications generating high temperatures with improved crater wear resistance.

Abstract: A cutting element for use in a cutting operation, comprising a cutting edge (CE) capable of cutting out material from a workpiece during the operation, to form therein a workpiece corner of angle alpha. There exists at least one view of the cutting edge in which a portion of the cutting edge is delimitable by a first (L1) and a second (L2) line oriented tangentially to the portion of the cutting edge portion at respective tangency points A and B. The lines form therebetween a cutting angle corresponding to the workpiece corner angle alpha and have a vertex 0. For a bisector of the cutting angle intersecting the portion of the cutting edge at the point C, the projection C of the point C of the portion of the cutting edge on a line OL passing through the vertex 0 perpendicularly to the plane of the one view is located between projections A1 and B? of the respective points A and B of the portion of the cutting edge on the line OL.

Abstract: The invention relates to an end mill (1) for processing a bearing region of a crankshaft, in particular a crankshaft of a ship's engine, with a base body (2) with an end face (3) and several inserts (4) designed for a turn milling, which are arranged on or in the end face (3). In order to achieve favorable chip removal conditions with low cutting forces and thus a low tool load, it is provided according to the invention that the inserts (4) each have at least one cutting edge which comprises alternately active cutting regions and non-active cutting regions.

Abstract: A machining device for a workpiece wherein a first feed axis extends through a workpiece holder, a first machining tool is disposed on a first side of the feed axis, and a second machining tool is disposed on a side of the feed axis opposing the first side. Between a first feed axis and perpendicular to a second feed axis, at least one machining tools has a predetermined fixed angular offset.

Abstract: An apparatus for drilling a workpiece has a shaft portion including a holder to hold a drilling tool rotating around a first axis. A reduction gear is connected to the shaft portion. A cylindrical member, including an outer cylinder and an inner cylinder, rotatably contains the shaft portion at an eccentric position. The cylindrical member is connected to the output shaft of the reduction gear and rotated around a second axis parallel to the first axis. A slide containing cylinder contains the shaft portion, the reduction gear and the cylindrical member. The slide containing cylinder has a sliding structure for axially moving the shaft portion, the reduction gear and the cylindrical member. A drilling tool is simultaneously rotated around the first axis, revolved around the second axis and is axially moved.

Abstract: A lightweight, portable motorized scraper sharpener is provided. A housing is formed from a recycled plastic or any other lightweight material, and receives a motor, an on/off switch, and a cutter. The motor and the cutter are encased in the housing. The housing has an angled guideway or slot for insertion of the scraper to be sharpened in the housing, and may include a biasing member for urging the scraper against a support wall. The housing has a cavity for selectively removing the scraper shavings. The assembly can be used in the shop, home, around a ski hill with a portable battery pack, or could alternately be plugged into a car adapter/cigarette lighter.

Abstract: A milling head for use in conjunction with a rotary milling tool that is utilized to perform an operation on a tube, preferably of a tube bank or tube wall of a boiler system. The milling head is utilized to remove material or film from the outer diameter of a tube, or place a bevel on a tube end, or both. In one embodiment, the milling head includes at least one outer diameter milling element and at least one bevel milling element that are adjustable in relation to each other as well as the milling head body. Methods for milling a tube are also described.

Abstract: In the process for producing dental prostheses such as bridges, crowns implants, etc. from ceramic material, production is carried out at least by way of one CAD/CAM machining station. The ceramic material to be worked consists of an unsintered disk-shaped blank or one which has not been subjected to final sintering, working of the blank into dental prostheses being undertaken at a right angle or quasi-right angle to the parallel or quasi-parallel surfaces of the blank.

Abstract: A method of orbital milling is performed using an orbital end mill, which has a cutting bit designed for orbital end milling. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Abstract: A cutting insert of the present invention includes an upper surface; a lower surface; a side surface; a cutting edge which is located along an intersection of the upper surface and the side surface, and comprises a major cutting edge, a flat cutting edge, and a minor cutting edge located between the major cutting edge and the flat cutting edge; and a land part located along the cutting edge on the upper surface. The land part includes a minor cutting edge land portion located correspondingly to the minor cutting edge. The minor cutting edge land portion is inclined downward toward a central part of the upper surface. The present invention also provides a cutting tool including the cutting insert, and a method of manufacturing a machined product by using the cutting tool.

Abstract: A machining method of a press die having a pierce cutter and a secondary relief-clearance area recessed inward relative to a profile of the pierce cutter is provided. A plunge cutting tool having a tool body and at least one edge portion provided on an outer circumference of an end of the tool body is used, the edge portion being protruding from the outer circumference of the tool body and being capable of carving while rotating around an axis of the tool body and moving in an axial direction of the tool body. While rotating the plunge cutting tool with an axis of the tool body being approximately parallel to a surface of the pierce cutter, the plunge cutting tool is relatively moved along the profile of the pierce cutter. The plunge cutting tool is also relatively moved in the axial direction of the tool body along the shape of the pierce cutter and the secondary relief-clearance area in a piercing direction each time the plunge cutting tool is relatively moved by a predetermined pitch.

Abstract: An end face of a sheet member is cut while rotating a cutting member having a rotation axis extending along a vertical direction of the end face of the sheet member and a cutting blade projecting to a side of the end face of the sheet member around the rotation axis. The cutting member is moved relatively to the sheet member along a longitudinal direction of the end face to be cut. The part separated from a virtual line parallel to the sheet face and passing the rotation center in a cutting region formed by the rotating cutting blade is made to contact the end face of the sheet member.

Abstract: A cutting insert having excellent chip discharge performance is provided. The cutting insert (1) according to an embodiment of the present invention includes an upper surface (2), a lower surface (3), a side surface (4) connected to the upper surface (2) and the lower surface (3), and a cutting edge (5) which is located at an intersection of the upper surface (2) and the side surface (4), and includes a major cutting edge (51) and a flat cutting edge (52). The major cutting edge (51) includes a major cutting section (512) which has a concave shape and is inclined downward as a straight line connecting both ends thereof is away from the flat cutting edge (52) in a side view. A cutting tool (11) according to an embodiment of the present invention includes the cutting insert (1) and a holder (10) configured to attach the cutting insert (1) thereto.

Abstract: A cutting insert of the present invention includes an upper face, a lower face, a side face located between the upper face and the lower face, an upper cutting edge located at the intersection of the upper face and the side face, and a lower cutting edge located at the intersection of the lower face and the side face. The side face includes at least one upper concave part which extends up to the upper face along a thickness direction, and divides the upper cutting edge into a plurality of divided upper cutting edges, and at least one lower concave part which extends up to the lower face along the thickness direction, and divides the lower cutting edge into a plurality of divided lower cutting edges. The aforementioned at least one upper concave part and the aforementioned at least one lower concave part are separated from each other through a thick part being continuous along a width direction of the side face.

Abstract: A collecting chamber of a flow machine which expands in the direction of circumference, including at least one outer shell part and a contour insert is provided. The contour insert is provided with a groove which extends in the circumferential direction and is preferably configured as a helical spiral. The contour insert, is cut from a whole unit and is delimited at one end in the circumferential direction by a bent edge so that the flow losses are minimized during the passage from the collecting chamber into a subsequent diffuser.

Abstract: An airfoil root fillet having a predetermined compound curve profile can be flank milled with a single flank milling cutter having a generally conical flank milling portion and a rounded tip portion defining a compound curve.

Abstract: A coated cemented carbide insert is particularly useful for milling of cast iron, methods for making the insert, and methods of their use are disclosed. The insert is formed by a composition of the substrate of about 5-7 wt % Co, about 0.05-20 wt % total amount of the metals selected from the group consisting of Ti, Nb, Ta and combination thereof, and balance WC with a coercivity (Hc) of 1 about 4-19 kA/m and an S-value of about 0.81-0.96. The coating includes a homogeneous layer of (TixAl1-x)N, where x is between about 0.25 and abut 0.50 with a crystal structure of NaCl type and a total thickness of between about 1.0 and about 5.0 ?m as measured on the middle of the flank face.

Abstract: A milling cutter for milling a groove into a blade footing of a turbine blade made from a superalloy. The milling cutter comprises a shaft part and a cutting part connected to the shaft part in the longitudinal direction. The cutting part has flutes and, when viewed in cross section perpendicular to the longitudinal direction, has several cutting teeth distributed about the periphery. The cutting teeth are designed as scraping teeth with negative cutting geometry.

Abstract: A lifelike carving product and a method of producing the same is provided. The product may be utilized as an onlay or integral part of architectural elements to show designs of plant, fruit, and/or vegetable. The product includes at least one plant body, at least one stem, and a realistic fruit-stem/vegetable-stem interface. The plant body may include a flattened area, a stem receptacle whereat a plant end of the stem converges to the plant body, and an arcuate rim that at least partially surrounds the plant end in the stem receptacle. The realistic fruit-stem/vegetable-stem interface may be formed with the stem converging to the plant body perpendicularly with respect to a tangent line, or with a stem centerline of the stem aligning with a stem plane.

Abstract: A method for profiling the broad sides of a flat key, a key blank being clamped in a clamping device so that the broad side of the key blank is exposed. Guide grooves and variation grooves which are complementary to the longitudinal sectional profile of the cutter teeth are milled into the broad side by advance in the longitudinal direction of the key, in one work operation, using a milling cutter that has cutter teeth on its peripheral surface and rotates about a cutter shaft. To produce undercut grooves, the axis of the cutter shaft is inclined at an angle of inclination relative to the longitudinal center plane of the key, ribs of the cutter teeth producing an undercut guide wall using at least one rib.

Abstract: A slip ring is accommodated in a ram 34. The slip ring includes a fixed portion 72 having a feed element connected to a power source and a movable portion 73 electrically connected to the feed element. The movable portion 73 includes a contact 75 for supplying electricity to a spindle unit 100 and an electric device of a spindle head 118. After determining the position of a saddle 32 in a Y-axis direction and the position of a table in an X-axis direction, the position of the spindle head 118 about a B-axis is determined. Then, the ram 34 is moved along the Z-axis direction with the spindle unit 100 revolved about the C-axis, and, with a non-rotational cutting tool 170 attached to the spindle unit 100, a hole is bored in a workpiece W on the table.

Abstract: A cutting insert, a tool for holding a cutting insert, with a cutting insert and method of machining a workpiece with a tool holding a cutting insert. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Abstract: Method and system for producing holes of various dimensions and configurations in a workpiece (42) using a portable orbital drilling machine (44), wherein said workpiece has attached thereto a template (10) with preformed guide holes (12-40) located in a pattern corresponding to the positions of the holes to be formed in the workpiece. Each guide hole (12-40) is provided with a readable information carrier (12i-40i) containing an identification of the respective guide hole. When fixating the drilling machine (44) in a guide hole, the latter is identified by a hole database (48) by sensing the respective information carrier. A control unit (50) associated with the hole database (48) controls the drilling machine (44) to perform a relevant hole-cutting process in the workpiece.

Abstract: The invention relates to a method of machining the bearing seats of main and rod bearings (HL, PL) of crankshafts (1), in which the bearing seats (30) of the main and rod bearings (HL, PL), after the primary forming of the crankshaft (1) by forging or casting, are subjected to the following processing operations: forming by machining with a specific cutting edge, deep rolling all fillets or recesses of the main and rod bearings, straightening of the crankshaft (1), precision machining with an end-milling cutter (12) in each case by high-speed roughing-cut turn-milling and finishing-cut turn-milling, smooth rolling of the bearing seats of the crankshaft after the finishing-cut turn milling, wherein the roughing-cut turn-milling and the finishing-cut turn-milling is effected during in each case an essentially complete revolution of the crankshaft (1) without longitudinal feed and without tangential feed of the end-milling cutter (12).

Abstract: The present invention is related to manufacturing surfaces with an axis decentered from the spindle axis. In particular, the present invention is related to compensating for tool geometry in cutting processes that involve an oscillating tool.

Abstract: A system for controlling object movement on a machine. The system controls a speed of a working point of the machine according to a dynamic decay speed determined through an exponential function after the working point passes by a buffer distance. A related method and storage medium with instructions for performance of the method also provided.

Abstract: The invention relates to a method for producing a prefabricated part (1) from an unmachined part (2) by means of a milling tool (3). Said milling tool (3), when plunged into the material of the unmachined part (2), is automatically tilted in the advancing direction and/or laterally to the advancing direction in relation to the immersion path (4) that deviates from the direction (5) of the milling tool (3) that is machined immediately thereafter.

Abstract: A temporary securing device for plate-like work pieces includes a split body and an anchor segment, the split body has a resiliently compressible biasing member to allow an outer diameter of the split body to contract allowing passage within a plurality of openings in the work pieces, the split body has an engagement portion near a first end, the engagement portion has an operative surface to engage an outer surface on a first outer work piece, the split body has a second end and a threaded inner support near the second end, the anchor segment is operable to engage an outer surface on a second outer work piece, the anchor segment includes a threaded member to engage the threaded inner support, the threaded member be rotationally operational to draw the split body toward the anchor segment.

Abstract: A cutting tool comprises: a first cutting insert having a first side surface for interconnecting a first upper surface and a first lower surface, a first cutting edge located at the intersection between the first upper surface and the first side surface, and a first groove section located in the first side surface and extending to the first upper surface so as to divide the first cutting edge; a second cutting insert having a second upper surface, a second side surface, a second cutting edge located at the intersection between the second upper surface and the second side surface, and a cutting edge reinforcing section located on the second upper surface at an end thereof which is positioned on the second cutting edge side; and a holder for mounting thereto the first cutting insert and the second cutting insert.

Abstract: A cutting insert of the present invention includes a side face having an upper concave portion which is located between an upper face and a lower face and extends up to the upper face, and a plurality of divided upper cutting edges which are located at the intersection of the upper face and the side face, and are divided by the upper concave portion. Each of these divided upper cutting edges includes a first end and a second end, and is inclined being closer to the lower face from the first end toward the second end. The plurality of divided upper cutting edges include a first divided upper cutting edge and a second divided upper cutting edge adjacent to each other.

Abstract: In the use of a distributor or diffuser in the form of a thin-walled, completely or partially air-permeable, heat-reactive layer for drilling or milling machining of a workpiece with a tool, a vacuum, surface tension is produced, which is large enough to fix the position of the workpiece, by using a vacuum over the layer acting as a distributor or a diffuser on the surface of the workpiece to be machined. The workpiece is then machined, and a cutting speed and rate of feed is adjusted, such that a defined local heating takes place in a contact area between the tool and workpiece. The peak temperature at the contact area is greater or the same as a melting temperature of the surface of the distributor or diffuser.

Abstract: A forging die production method comprising a cutting step which employs, as a cutting tool, a ball end mill having a surface which has undergone a hardening treatment and in which a forging die material is cut under conditions where a length of tool extension L (mm), radius R (mm) of a cutting edge of the ball end mill, spindle speed A (rpm) and feed rate B (mm/min) satisfy (B/A)2×(L/(2×R))=0.01 to 0.05. A forging die is produced through the forging die production method. A forged article is produced through forging by use of the produced forging die.

Abstract: An outer member and an inner member constituting a wheel bearing device are assembled and the brake rotor is fixed to the hub ring of the inner member. In this state, the pad slide surfaces of the brake rotor are lathed with the reference provided by a wheel pilot end surface. Alternatively, the wheel pilot end surface of the hub ring by chucking the knuckle pilot of the outer member with the wheel bearing device put in its assembled state, and the pad slide surfaces of the brake rotor are lathed with the reference provided by the wheel pilot end surface.

Abstract: A rotary motion cutting tool having an axis of rotation for cutting at least a portion of the spherical surface on an internal surface of a workpiece includes a rotary slide, a rotary actuator, and an actuating plate with a rotary surface machined therein. The rotary slide is rotatably supported with respect to a rotary axis extending generally perpendicular to the axis of rotation of the rotary motion cutting tool. The rotary actuator is rotatably supported with respect to the rotary slide for rotation about a rotary actuator support axis spaced radially from, and generally parallel with, the rotary axis of the rotary slide. The actuating plate is driven in reciprocal movement along the axis of rotation for interaction with the rotary actuator. Reciprocal movement of the actuating plate translates through the rotary surface and rotary actuator into rotary movement of the rotary slide through an arc about the rotary axis.

Abstract: A small-diameter drill for deep hole drilling is provided which is capable of inhibiting the cutting chips from getting bitten and producing a straightness for a drilled hole, thus suitable for drilling a hole having a depth (L) which is 15 or more times the diameter (D) of a drilled hole. The small-diameter drill 1 has a diameter 2 which is 1 mm or less and a drill section 5 including cutting edge(s) 3 and flute(s) 4. The length 11 of the flute 4 is at least 5 times and at most 10 times the drill diameter 2. The diameter of the drill section 5, after being reduced in diameter from the cutting edge 3 toward the rear of the drill section 5, is expanded in diameter so that the outer diameter at the end of the flute 4 becomes at least 0.9 times and at most 0.98 times the drill diameter 2.

Abstract: A cutting tool insert includes a body of cemented carbide, cermet, ceramics, cubic boron nitride based material or high speed steel and a hard and wear resistant coating including at least one metal nitride layer. The coating includes at least one layer of a thermally stabilized cubic structured (Ti1?(x+z)SixMez)N phase with 0.04<x<0.20 and 0<z<0.10, with a constant elemental composition throughout the layer where Me is one or more of the metal elements Y, Hf, Nb, Ta, Mo, W, Mn, Fe and Zn with a thickness of 0.5 to 10 ?m. The layer is deposited using cathodic arc evaporation and is particularly useful for machining of stainless steel and super alloys.

Abstract: A tooling system comprises a plurality of elongate elements each having an upper surface, said elements being arranged in an array to present said upper surfaces for machining by cutting tool means; support means for supporting said elements, each said element being supported on said support means for axial movement between upper and lower positions relative to the other elements in the array thereby to enable adjustment of the vertical position of said element surface; and clamping means for clamping the array of elements in a closed position in which the elements contact one another for enabling the free ends of the elements to be machined to produce a desired surface contour.